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624. Udder infections in the ‘dry period’: II. The effect of withdrawing secretion from the dry udder on the incidence of infection

Published online by Cambridge University Press:  01 June 2009

J. Oliver ,
F. H. Dodd ,
F. K. Neave  and
J. M. Lee
J. Oliver
Affiliation:
National Institute for Research in Dairying, University of Reading
F. H. Dodd
Affiliation:
National Institute for Research in Dairying, University of Reading
F. K. Neave
Affiliation:
National Institute for Research in Dairying, University of Reading
J. M. Lee
Affiliation:
National Institute for Research in Dairying, University of Reading
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Extract

1. An experiment was carried out with seventy-five dry cows to study the effect of taking samples of udder secretion for bacteriological examination on the incidence of new infection in the early dry period. The incidence of new infection in two quarters of each cow, sampled at weekly intervals after drying off, was compared with that in the remaining two quarters sampled in the fourth and fifth week of the dry period.

2. No difference in the new infection rates was found between the quarters that were sampled early in the dry period and those that were not.

3. Significantly fewer (P <0·05) staphylococcus infections occurred in quarters sampled in the early dry period compared with those sampled at a later stage.

4. About half of all the new infections persisted until the next lactation.

5. It was concluded that if natural sealing of the teat orifice or teat sinus takes place it is of minor importance in preventing infection in the early dry period.

Type
Original Articles
Information
Journal of Dairy Research , Volume 23 , Issue 2 , June 1956 , pp. 194 - 196
Copyright
Copyright © Proprietors of Journal of Dairy Research 1956

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References

REFERENCES

(1)Neave, F. K., Dodd, F. H. & Henriques, E. (1950). J. Dairy Res. 17, 37.CrossRefGoogle Scholar
(2)Oliver, J., Dodd, F. H. & Neave, F. K. (1956). J. Dairy Res. 23, 169.CrossRefGoogle Scholar